Overview

overview

10

Static

static

683a09da21...96.exe

windows7_x64

10

683a09da21...96.exe

windows10-2004_x64

5

unpacked.exe

windows7_x64

10

unpacked.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    14-07-2022 06:23

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General

  • Target

    unpacked.exe

  • Size

    72KB

  • MD5

    108756f41d114eb93e136ba2feb838d0

  • SHA1

    8c6b51923ee7da2f4642c7717db95fbb77d96164

  • SHA256

    b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

  • SHA512

    d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

Score
10/10
satanabootkitpersistenceransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!satana!.txt

Ransom Note
You had bad luck.There was crypting of all your files in a FS bootkit virus <!SATANA!> To decrypt you need send on this E-mail: [email protected] your private code: F598ECB9EDAEB98D5058E45420B7C177 and pay on a Bitcoin Wallet: XgcJptdY1pSVtCGCAvFBavH7oWAe2iASvS total 0,5 btc After that during 1 - 2 days the software will be sent to you - decryptor - and the necessary instructions. All changes in hardware configurations of your computer can make the decryption of your files absolutely impossible! Decryption of your files is possible only on your PC! Recovery is possible during 7 days, after which the program - decryptor - can not ask for the necessary signature from a public certificate server. Please contact via e-mail, which you can find as yet in the form of a text document in a folder with encrypted files, as well as in the name of all encrypted files.If you do not appreciate your files we recommend you format all your disks and reinstall the system. Read carefully this warning as it is no longer able to see at startup of the computer. We remind once again- it is all serious! Do not touch the configuration of your computer! E-mail: [email protected] - this is our mail CODE: F598ECB9EDAEB98D5058E45420B7C177 this is code; you must send BTC: XgcJptdY1pSVtCGCAvFBavH7oWAe2iASvS here need to pay 0,5 bitcoins How to pay on the Bitcoin wallet you can easily find on the Internet. Enter your unlock code, obtained by E-mail here and press "ENTER" to continue the normal download on your computer. Good luck! May God help you! <!SATANA!>

Signatures

  • Satana

    Ransomware family which also encrypts the system's Master Boot Record (MBR).

    ransomwaresatana
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\unpacked.exe
    "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4272
    • C:\Users\Admin\AppData\Local\Temp\irczk.exe
      "C:\Users\Admin\AppData\Local\Temp\irczk.exe" {d0f3b882-bc61-11ec-b264-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:4700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\!satana!.txt
    Filesize

    1KB

    MD5

    e01dc07b366fc1c9304828110c5a7dbe

    SHA1

    9fc685d1db27c6d72789fb25763b611fdb88e866

    SHA256

    235a07d12bcd88b0e31c82fef576c44e8f7720103d178ab8f9aa10c0ef2337b0

    SHA512

    654548ce187a89b83f37b2f411eb79ee3b5efe39bcf60a267a1c2a1fc3bd08ec7e31b5447bea9fea2f882317c679d29eb6bd5cdfc7ab76ab7b0407d1e24a0fc8

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\irczk.exe
    Filesize

    72KB

    MD5

    108756f41d114eb93e136ba2feb838d0

    SHA1

    8c6b51923ee7da2f4642c7717db95fbb77d96164

    SHA256

    b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

    SHA512

    d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\irczk.exe
    Filesize

    72KB

    MD5

    108756f41d114eb93e136ba2feb838d0

    SHA1

    8c6b51923ee7da2f4642c7717db95fbb77d96164

    SHA256

    b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c

    SHA512

    d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa

    Download Submit
  • memory/4700-130-0x0000000000000000-mapping.dmp
    Download